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helpmexoxo

A firecracker shoots up from a hill 150 feet high with an initial speed of 95 feet per second. Using the formula H(t) = −16t2 + vt + s, determine how long it will take the firecracker to hit the ground.

  • one year ago
  • one year ago

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  1. NotTim
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    1. Let's draw a diagram. 2. LEt's make a variables list 3 Find der formulas tu need!

    • one year ago
  2. NotTim
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    4. Solve it! remember which formulas need to be 'combined'!

    • one year ago
  3. Romero
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    Do you just want the answer?

    • one year ago
  4. NotTim
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    blue bird! go back to your other question! THIS MA TOWN!

    • one year ago
  5. NotTim
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    oooh wait. this aint physics...

    • one year ago
  6. helpmexoxo
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    How would i make a variables list?

    • one year ago
  7. NotTim
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    you just need to find the end points!

    • one year ago
  8. helpmexoxo
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    I'm confused :o

    • one year ago
  9. helpmexoxo
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    I thought you only plug in the numbers to the equation but i'm unsure if that's correct or how to do it even if it is correct

    • one year ago
  10. NotTim
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    v=95 ft/s H(t)=150

    • one year ago
  11. NotTim
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    solve for s!

    • one year ago
  12. NotTim
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    wait...what's s? solve for t, silly me

    • one year ago
  13. helpmexoxo
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    ok but there is also a s!?

    • one year ago
  14. helpmexoxo
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    I tried to solve but i'm soooo confused

    • one year ago
  15. lgbasallote
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    let H(t) = 0 then solve for t

    • one year ago
  16. NotTim
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    really? shoot. I suck at even trinomials now huh

    • one year ago
  17. NotTim
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    maybe s is given elsewhere in your textbook

    • one year ago
  18. helpmexoxo
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    no it isn't :o

    • one year ago
  19. helpmexoxo
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    @Romero yes please can i have the answer

    • one year ago
  20. NotTim
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    @lgbasallote wat is s?

    • one year ago
  21. lgbasallote
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    i'd like to say it's the distance traveled

    • one year ago
  22. helpmexoxo
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    Is the answer 7.2 seconds?

    • one year ago
  23. NotTim
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    dunno. doesnt your txtbook ahve the answer?

    • one year ago
  24. helpmexoxo
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    no @lgbasallote is the answe 7.2s ?!

    • one year ago
  25. helpmexoxo
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    i'm doing an online course not from a textbook!

    • one year ago
  26. lgbasallote
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    lol shouldnt @NotTim be answering this o.O wait..ill check

    • one year ago
  27. NotTim
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    i dont wanna do math...

    • one year ago
  28. lgbasallote
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    it;s what my calculator said

    • one year ago
  29. helpmexoxo
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    ok thank you all :)

    • one year ago
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